According to Sports Insights’ Bet Labs software that includes archived NFL line data from Pinnacle since the start of the 2003 season, the Oakland Raiders-Kansas City Chiefs matchup on Dec. 25, 2004 closed with an over/under of 60, the highest we’ve ever tracked.

Kansas City won the game, 31-30, putting the game over the total by a single point.

While Chiefs-Rams is weeks away, an offshore sportsbook posted a Chiefs-Rams total of 59.5 on Oct. 17.

The Westgate Las Vegas SuperBook opened its own lookahead lines for this matchup on Oct. 24, but with an over/under of 63.5. That would obviously shatter the previous record in Bet Labs’ database.

In addition to the stunning over/under, Westgate also posted the Rams as 3-point favorites over the Chiefs.